Field of knowledge
Geography
Earth systems, physical topography, and geopolitics
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Geography
The Mariana Trench vs. Mount Everest: What "Deepest" Actually Means
Mount Everest is the highest point above sea level, and the Mariana Trench holds the deepest, but neither title is as simple as it sounds. Depending on how you actually define "highest" or "deepest" — from sea level, from Earth's center, or from a mountain's true base — the record holders change completely.
Read 12 September 2026
Geography
The Ground Beneath You Is Moving Right Now
Whatever you're standing on right now is drifting — slowly, constantly, and measurably, at a speed scientists compare to how fast your fingernails grow. It took decades for scientists to accept this, and GPS satellites now track it happening in real time, down to the millimeter.
Read 12 September 2026